Rivet setting machine



Dea.. 29, 1931. A. wt PHELPs ET AL 1,839,048

' RIVET SETTING MACHINE Filed April 5,1930 ,5 Sheets-SheetV l Dec- 29,1931- A. w; PHELPs ET L 1,839,048

R'Ivm SETTING MACHINE y Filed April 5, 19:50 5 sheetshes: 2

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Dec. 29, 1931. A. w. PHI-:LPS ET AL RIVET SETTING MACHINE Filed April 5,1950 5 Sheets-Sheet 5 lil)ec. 29, -1931. AL w. PHELPS ET AL 1,839,048

RIVET SETTING MACHINE Filed April 5, 1930 5 sheets-snaai 1493-1.l 'A. w.PHELPS ET A l.

RIvET SETTING MACHINE PatentedY Dec. 29, 1931V UNITED ,STATES PATENTOFFICE ALVA w. rHELrs AND `NORMAN I.. PENN, or ANDERSON, rND-IANA,AssiGNoEs rro DllLco-REMY CORPORATION :DELAWARE or ANDERSON, INDIANA, AooltroEA'rroN 'o F EltvEr SETTING MACHINE Application inea April 5,1930. serial No. 441.999.

This invention relates to riveting machines and more yparticularly toVmachines setting small hollow rivets or eyelets.

One of the objects of the present invention is to adapt a rivet settingmachine for automatic operation upon a piece of work requiring aplurality of rivets or eyelets. Accordingly, the present inventionprovides a work holder and means for intermittently moving chine, andthe other of `which may; be ina position for unloading and Vreloadingthe work, the mechanism for moving the work holders being common to allof the work holders of the conveyor. v,

Furtherobjects and advantages ofthe present invention Vwill beapparenti-rom the fol-v lowing description, reference being hadl to the`accompanying drawings wherein a preferred embodiment of one form of thepresent invention is clearly shown. .4 Y,

In the drawings:

Fig. 1 is a perspective side view of` ama'-k chine embodying the presentinvention. j

Fig. 2is a fragmentary end viewlooking in the direction of arrow 2-ofFig. 1.

Fig. 2a is a sectional view on line 2a-`-2a of F iur. Y y Y t Figs. 3and 3a are sectional views on the line 3 3 of Fig. 2 and are drawn to avlarger scale. Fig. 3 shows the rivet feedin position for locatingV arivet in. alignment with the riveting punch pilot. Fig. 3a shows therivet feed retracted from thepilot.

Fig. l is a fragmentary perspective view of the .part of the machineshown `in Fig. 1.

Fig. 5 is a plan view of a work piece .having a rivet or eyelet attachedthereto.

Fig. 6 is a fragmentary `side elevation sliowing a lfragment of thewo-rkholderlwiththe work piece attached thereto. The work piece -is drawn toalarger scale.

is shown in longitudinal section and an veyelet shown in longitudinalsection is fastened to one of its apertures.v Fig. 6 shows a. fragimentof a riveting punch pilot for applying a rivet to another aperture ofthe work piece,

and shows a fragment of a riveting punch ,for fastening the rivet inplace.

Fig. 7 is la fragmentarylongitudinal view of the work holder, workpiece, rivet, rivet pilot and rivet punch in position justprior i" toup-settlng the lower end of the rivet.

\ Fig. 8 is a fragmentary side elevationof the machine looking in thedirection of `the arrow 8 in Fig. 2.

Fig. 9 is a fragmentary side elevationof a portion of the machine shownin Fig. 8 and The rivet `and rivet feed shown ijn this ligureare shown'in longitudinal section. l Q 1 Fig. 10 is a fragmentary sectional viewon the line 10a-'10 of Fig-8. f

` Fig. 11 is a fragmentary sectional view on the lilie-ll-tllof Fig. 10.

Fig. 12 is a fragmentary sectional view on the line 12-"12 of Fig. 1v1.V

Fig. `13 isafragmentary longitudinal sectionallvie'w of one of the workholders..V

. Fig; 14: isv a fragmentary Vsectional view on theline lll- 14 of Fig.10. y

Fig. 15isa sectional view on of Fig.14. Y i

. Fig. 16 isa sectional view on the line `16--16 of Fig. 8. Y.

Figs. 17 and 18 are fragmentary ysectional views taken on the lines17-17 of Fig. 14: and show the clutch in disconnected and conline 15-715to move downwardlyintoY a rivet A whenglo-V cated vertically belowthe'pilot.l The pilot 28 is yieldingly urged downwardly/by spring 29housed within the punch 27, downward movement being limited by the head30 of the pilot 28 striking the lower wall 31 of the recess whichreceives the head 30 and spring 29.

The disclosed embodiment of the present invention comprises a rivetsetting machine which is adapted to apply tubular rivets or eyelets tothe worl; piece B, which is a nonconducting cylindrical body providedwith a circular row of three holes B1, each hole having the part B2adjacent one end of the body DB and of smaller diameter than the majorportion B3 of thephole. lThis smaller portion B2 of smaller diameter isadapted to receive the rivetjA which is attached tothe body as shown atA1 in Fig. 6. The body B is mounted on a work holder having posts oranvils 41 each received by one of the holes B1 when the Vbody is placedon the work holder. The post 41 is slightly less in diameter than thehole portion B3 and this diameter terminates at 42 which is slightlybelow the shoulder portion B4 connecting the `cylindrical side walls ofthe hole portions B2 and B3. The post or anvil 41 is provided with atubular projection 43 of less outside dia-meter than the hole portion B2and located so as to project slightly up into the hole portion B2. Theprojection 43 joins the main portion of the post 41 by a shoulder havinga curved annular surface 44.

Vhen one of the posts 41 is vertically below the punch 27, by mechanismto be described, the shaft 23 is rotated to cause the pilot 28 todescend through a rivet A located vertically above it, thereby causingthe rivet to move from a position such as shown in Fig. 6 to theposition shown in Fig. 7. As the punch 27 moves downwardly, the lowerend of the pilot 28 engages the extension 43 of the post 41 whereuponfurther downward movement of the pilot 28 is arrested. The continueddownward movement of the punch 27 causes a rivet to be moved into theposition shown in Fig. 7 wherein the rivet has been located so as tohave its lowery end riveted or curled around against the shoulder B4 ofthe body B by riveting operation produced during further downwardmovement of the punch from the position shown in Fig. 7. It will benoted that the surface 44 of the post 41 operates to cause the lower endof the rivet to be upset against the surface B4 as shown in connectionwith the rivet A1 in Fig. 6. This riveting operation takes place whilethe iange AF of the rivet A is forced by the punch 27 against the uppersurface of the body B. The rivet having been attached to the body, willremain in place as the punch and pilot ascend to a position for engaginganother rivet which has automatically been placed in alignment with thepilot by the operation of an automatic rivet feeding device to bedescribed.

Referring to Figs. 11 to 13, the work holder 40 is rotatably supportedby a work holder conveyor 45 carrying a plurality of such work holders.The conveyor 45 comprises a metallic block pivotally attached by screw46 to a bracket 47 attached to the table bracket 21 by screws 48, theblock 45 is operated by a handle 49. rThe work holder 40 is attached toa gear 50 which rests upon the upper surface Vof the block 45. Thetubular shank 51 of the work holder 40 is threadedly connected with ascrew 52, which is threaded through a nut 53 received by a recess 54provided by the block 45. The nut 53 limits upward movement of the workholder 40. The worh holder40 is maintained in any of the operatingpositions by a ball 55 urged upwardly by spring 56, there Vbeing as manyequally spaced detents in the gear 50 for receiving the ball 55 as thereare posts 41. rThe worli holder gears 50 are covered by a plate 56having apertures 57 through which the poste 41 may project to receivethe work.

Each work holder gear 50 is adapted to mesh rwith a driving gear 60pivoted upon a screw 61 threaded into the table 21. T he gear 60 isdriven by a ratchet 62 cooperating with a driving pawl 63 pivotallyattached by screw 64 with a slide 65. Pawl 63 is urged against theratchet 62 by a spring 63a. The slide 65 is guided for horizontalreciprocating movement by a plate 85 secured to the table 21 by screws86. A spring 66 urges the slide 65 toward the right as viewed in F ig.10, said spring being connected by screw 67 with the slide and by screw68 with the table 21. The right hand end of slide 65 is connected by pin70 with a lever 71 pivoted upon screw 72 carried by bracket 73 which isattached to the table 21. Lever 71 carries at its upper end a roller 74which cooperates with a plate cam 75 having a single lobe 76. The cam ismounted on and driven by the shaft 23.

During each revolution of shaft 23 which produces one completeoscillation of the riveting punch and rivet carrying pilot, the cam 75will produce one complete oscillation of the lever 71 and slide 65 inorder to effect such movement of the gear 66 and gear 50 as will causethe work holder to be rotated at angular distance equal to the angularspacing of the posts 41. The drawings illustrate a work piece havingthree equally spaced rivet receiving holes, hence, the gear 51 must bero tated 120 degrees. The gear ratio between gears 60 and gears 50 istwo to one, hence, the gear 60 is required to be rotated intermittently60 degrees. 1n the normal position of gear 60 shown in F ig. 10, thegear is locked against movement by a locking pawl 8O having a point 81adapted to be received by a gear tooth-ed space and having a tail 82adapted to be received by shoulder 83 in the slide 65. When the slide 65moves toward the left in Fig. 10 in order to move the pawl 63 against"the ratchet 62, theshoulder 83- of the slide 65 positions by a ball 87retained by base 21 and urged b-y a spring 88 into either of tworecesses 89 and 89a provided by the block 45.

The shaft 23 is connectible by a clutch to -be described with a drivingpulley 9,0 (see Figs. 8, 10 and 14) which is connected by a Ybelt 91with an electric motor not shown.

The pulley carries a bearing liner 92 journalled on the shaft 23.' Theclutch mechanism comprises a driving pin 93 urged by a spring 94 towarda clutch member 95Y attached by a key 96 to shaft 23. The pin 93 isprovided with a shoulder 97 cooperating with a latch block 98 guided forradial sliding movement by a notch provided in the hub of the pulley 90and urged into latching position by spring 99 located betweenthe latchblock 98 and a head 100 of a pin 101 attached tothe pulley 90. Referringnow to Figs. 17

and 18, the pin 93 is adapted to move towardV the left into a notch 102provided by the member and there to engage awear piece 103. In orderthat the latch block 98 may be retracted from the pin 93 to permit it toengage the wear piece 103 `there is provided avlatch release block 104mounted on an operating rod 105 which passes through bracket arms 106.and 107 and which is yieldingly urged upward into the positions shown inFigs. 14 and 15 by spring 108, The rod 105fis pivotally connected at 109with a rod110 attached by a latch block 111 with a rod 112. Referring toFig. 1 the rod 112 isV connected with a lever 113 pivoted at 114 uponthe pedestal 20 and having a pin and slot connection 115 with a lever116 pivoted at 117 and carrying a pedal 118. `When the pedal 118 ispressed downwardly the rod 112 will be pressed downwardly therebycausing the latch release block 104 to move the latch block 98 down-vwardly in order to permit Vthe spring 94 to move the pin 93 intooperative engagement with the wear piece 4103 of themember 95. VIVhenthis occurs the pulley 90 will vbe drivingly connected with the shaft23. If before the end of a revo-lution of the shaft 23 the pedal 118 bereleased to permit the rod 112 to move upwardly, the spring 108 willreturn theblock 104 to normal position. In the normal position of theblock 104 its beve-lled camming surface 120 will be so located that itwill be engaged by the left hand end of the pin 93 Vas it rotates aroundinto contact with the block104. Thus, theblock 104-cooperates to movethe pin fromgclutch engaging position to clutch disengaging positionshown in Figs. 18.` and 17 respectively. menthe pin 93 has been returnedto the position shown in Fig. 14, the latch 98 will operate to hold itin thisposition.

' Since aplurality of riveting operations are to be performed upon eachVwork piece, the

present invention provides for stopping Athe machine by disengaging theclutch only after all of these operations have been performed.

Thisis accomplished by providing .a pedal ,holding latch which isautomatically renl dered operative by depressing the pedal 118 to holdthe clutch latch release block 104 in operating position to permitengagement of the clutch. This pedal holding `latch lcomprises the latchblock 111 shownin Figs. 14 and 15 and a cooperating pin 130l attached to.a horizontally slidable block 131 urged toward the right, as viewed inFig. 16, by spring 132 attached at one end to the slide 131v and at theother end toa vbracket 133 Vwhich supports the slide 131. The bracket133 is attached to the bracket 73. Thelatch block 111 is guided bybracket 134 attached to the table 21. When the pedal 118 is presseddownwardly to cause the rod 112 to be moved downwardly to permitconnecting the clutch, the

pedal -latch block 111 will be moved into doti .dash lines of position111e shown in F ig( 14, whereupon the pin will be cammed hori- Zontallytoward the left and then will snap back over the upper end of block 111and :against the rod 110. Thus the clutch pin latch retainingblock 104will be held in operating position to permit connecting the clutch. Thepin 130 is automatically moved to the left just before the machinecompletes all of its operationsY upon a work piece by a mechanismcomprisingV a pin adaptedto engage the camming surface 141 at the righthand end of the bar 131. The lpin 140 is mounted adjacent the peripheryof gear 142 journalled on a stub shaft 143 secured to a plate 144mounted on bracket 7 3 and a bracket 145 (see Fig.r10-). The stub shaft143 supports a bar 146 which in turn supports a bearing 147 for theright hand of the shaft'23 as viewed in Fig. V14, the gear 142mesheswith a smaller gear 148 driven by the shaft 23. The gear ratiobetween gears, 142 and 148 depends on `the number of operations which`the machine performs on each work piece.

GladV 156. Within the hopper there rotates, counterclockwise as viewedin Fig. 2a, an agitator 160 consisting of a plurality of arms of rubbertubing 161 extending from a hub 162 which is connected by a shaft 163rotatably supported by the frame 150. The shaft 163 carries a pulley 164driven from a pulley 165 on shaft 166 by a belt 167 which passes aroundguide wheels 168 and 169. Shaft 166 is supported by a bracket 170 whichis supported by frame 22 and by a bracket 171, which shaft 166 is drivenby a pulley 172 connected by a belt 173 with a pulley 17 t connectedwith shaft 23.

The rotating agitator 160 causes the eyelets A to impinge upon the innerwall of the hopper 153. Some of these eyelets which slide flangedownwardly along the base of the hop-v per leave the hopper throughapertures 175 or 176 shaped to permit passage of eyelets flangedownwardly only. Such eyelets pass down a chute provided between theedges 17 7 a and 17 8a respectively of spaced plates 177 and 178attached to frame 150. These 'edges are spaced from the frame 150 by anamount exceeding the thickness of the flange of the eyelet A and fromeach other by an amount less than the diameter of the flange and greaterthan the diameter of the shank of the eyelet, thus the eyelet flangeshang on the plates 177 and 178 as they slide down the chute provided bythese plates.

Referring to Figs. 2, 3,30a1i and 9, the plate 177 terminates in a latch180 which normally operates to retain the lowermost eyelet in the chute.The latch 180 is pivoted at 181 upon a bracket 182 attached to the frame15() at its lower end. A spring 183 attached to the latch 180 and frame15() urges the latch 180 toward the plate 178 in order to retain theeyelet A. The frame 150 is caused to oscillate from a position shown inFigs. 2, 3, 8 and 9, in which the lowermost eyelet A will be in verticalalignment with the pilot 28, to a position clockwise from the positionshown in Fig. 2 by a cam 190 provided by clutch part 95 shown in Fig.11i. Cam 190 engages a roller 191 pivoted on an arm 192 attached to arod 193 attached to an arm 1911 connected by a link 195 to the frame150. The rod 193 is rotatably supported by the frame 22 and carries anarm 196, urged counterclockwis@J by a spring 197 located in a recess inthe bracket 171. The spring 197 therefore urges the roller 191 againstthe cam 190 and the lower end of the frame 150 toward the right, whereasthe cam 19() causes the lower end of the frame 156 to move toward theleft.

In the disclosed embodiment of the invention, the shaft 23 rotatesclockwiseV as viewed in Fig. 2. While the lower end of pilot 28 ismoving upwardly above the lower end of frame 150, cam 190 operates topermit the spring 197 to move the lower end of frame 150 toward theright as viewed in Fig. 2 so that the lowermost eyelet A will be locatedvertically below the pilot 28. While the pilot 28 is moving downwardlythis eyelet A is held in this position until the pilot 28 enters theeyelet; but before the punch 27 touches the latch V180 the cam 190operates to retract the lower end of the frame 150 from the pilot 28.During this movement of the frame 150 the parts 178, 180, 181 and 183shown in Fig. 3 move respectively into the positions 178, 180', 181 and183 shown in Fig. 3a, and latch 180 swings toward the right as viewed inthese 'figures to permit withdrawal of eyelet A. The eyelet A beingfreed from the magazine feed, the latch 180 snaps back into position forreceiving the next eyelet A which is removed by the pilot 28 from theeyelet feed ing device during the next downward movement of the pilot.

`While the form of embodiment of the present invention as hereindisclosed, constitutes a preferred form, it is to be understood thatother forms might be adopted, all coming within the scope of the claimswhich follow.

Vihat is claimed is as follows:

1. Apparatus for setting hollow rivets or eyelets comprising, incombination, a rivet setting punch, a movable work hol-der for receivinga work piece having a plurality of rivet receiving apertures, said workholder having a plurality of anvils each received by an aperture of thework piece, each anvil cooperating with the rivet punch to set a rivet,means for automatically moving the work holder so that the anvils arelocated successively in alignment with the punch, and means for feedingthe rivets to the work piece apertures.

2. Apparatus for setting hollow rivets or eyelets comprising, incombination, a rivet setting punch, a movable work holder for rec'eivinga work piece having a plurality of rivet receiving apertures, said workholder having aplurality of anvils each received by an aperture of thework piece, each anvil cooperating with the rivet punch to set a rivet,means for automatically moving the work holder so that the anvils arelocated successively in alignment with the punch, means forautomatically stopping the apparatus when all of the work pieceapertures have received rivets, and means for feeding the rivets to thework piece apertures.

3. Apparatus for setting hollow rivets or eyelets comprising, incombination, a rivet setting punch, a rotatable work holder forreceiving a work piece having a plurality of rivet lreceiving apertures,said work holder having a plurality of anvils each received by anaperture of the work piece, each anvil 'cooperating with the rivet punchto set a rivet, means for automatically rotating the work holder so thatthe anvils are located successively in alignment with the punch, and

means for feeding the rivets to the work piece apertures.

4. Apparatus for setting hollow rivets or eyelets comprising, incombination, a rivet setting punch, a rotatable work holder forreceiving a work piece having a plurality of rivet receiving apertures,said work holder having a plurality of anvils each received byanaperture of the work piece, each anvil cooperatingl with the rivetpunch to set a rivet, means for automatically rotating the work holderso that the anvils are located successively in alignment with the punch,means for automatically stopping the apparatus when all of the workpiece apertures have received rivets, and means for feeding the rivetsto the work piece apertures.

5. Apparatus for setting hollow rivets or eyelets comprising, incombination, a rivet setting punch, a conveyor, a plurality of workholders each movably supported by the conveyor and each havingaplurality of anvils, each received by a rivet receiving aperture of thework piece when placed upon the work holder, each Vanvil cooperatingwith the rivet punch to set a rivet, meansfor moving the con.- veyor soas to locate a work holder in operating position, means cooperating withany Work holder placed in operatingposition to move said work holder sothat the anvils are located successively in alignment withthe punch, andmeans for feeding the lrivets to the work piece apertures.

6. Apparatus for setting hollow rivets or eyelets comprising, incombination, a rivet Vsetting punch, a conveyor,a plurality of workholders each movably supported bythe conveyor and each having aplurality of'anvils, each received by a rivet receiving aperture of thework piece when placed upon the work in mesh with the driving gear,automatic means for intermittently rotating said driving gear and thework holder gear then in mesh with it so that the anvils of said work 8.Apparatusfor setting hollow rivets orv Y eyelets comprising, incombination, a rivet setting punch, a conveyor a plurality of workholders each rotatably supported by the conveyor and each having aplurality of anvils each received by 4a Vrivet receiving aperture of thework piece when placed upon the work holder, each anvil cooperating'withthe rivet punch to set a rivet, a gear attached to each work holder, adriving gear with which any worlr holder gear is adaptedto mesh, meansfor moving the conveyor so as to locate a work holder in operatingposition and its gear in mesh with the driving gear, automatic means forintermittently rotating said driving gear and the workl holder gear theninv mesh with it so that the anvils of said work Vholder are locatedsuccessively in alignment with the punch, means for automaticallystopping the apparatus when all of the work piece apertures havereceived rivets, and means for feeding the rivets to the work pieceapertures.

In testimony whereof we hereto aiiix our signatures.

ALVA W. PHELPS. -NORMAN L. PENN.

holder, each anvil cooperating with the rivet punch to set a rivet,means for moving the conveyor so as to locate a work holder'in operatingposition, means cooperating with',v any work holder placed in operatingposition to move said work holder so that the anvils are locatedsuccessively in alignment with the punch, means for automaticallystopping the apparatus when all of the work piece apertures havereceived rivets, and means for feeding the rivets to the work pieceapertures.

7 Apparatus eyelets comprising, in combination, a rivet setting punch, aconveyor, a plurality of workV holders each rotatably supported by theconveyor and each having a plurality of anvils each received by a rivetreceiving aperture of the work piece when placed uponV the work holder,each anvil cooperating with the rivet punch toset a rivet, a gearattached to each work holder, a driving gear with which any work holdergear is adapted to mesh, means for setting hollow rivets or i for movingtheconv'eyor so as to locatea las

